Sec. 13-105

Other

• Buffer retention

  The buffer area shall be retained in its natural state and shall not be disturbed, except as otherwise provided in this article.

• Buffer area width100 ft

  A buffer area of 100 feet (measured from top of bank) located adjacent to and landward of the components listed in subsections (1) through (3) above and along both sides of any water body with perennial flow.

• Erosion and sediment control compliance

  The proposed development or redevelopment shall comply with section 5-4-1 et seq. of the City Code (erosion and sediment control).

• Environmental site assessment required

  An environmental site assessment shall be submitted with any application for development or redevelopment within the CBPA Overlay District.

• ImperviousImpervious coverageThe share of a lot covered by anything water cannot soak through — roofs, drives, patios. cover minimization

  Development or redevelopment shall minimize impervious cover consistent with the proposed use or development.

• Indigenous vegetation preservation

  Indigenous vegetation shall be preserved to the maximum extent practicable consistent with the use, development, or redevelopment proposed.

• Maximum civil penalty5,000 dollars

  Any person who violates any provision of this article shall be subject to a civil penalty of not more than $5,000 for each violation.

• Maximum land disturbance

  No more land shall be disturbed than is necessary to provide for the proposed use, development, or redevelopment.

• Land disturbance threshold2,500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Activities that disturb less than 2,500 square feet of land, unless the activity is part of a larger common plan of development or sale.

• Peak runoff control

  stormwater management facilities shall be designed to control the post-development peak runoff rate to the pre-development peak runoff rate for the 2-year, 10-year, and 25-year storm events

• Stormwater management plan required

  A stormwater management plan shall be submitted for all development and redevelopment subject to this article.

• Stormwater pollution prevention plan required

  A stormwater pollution prevention plan (SWPPP) shall be prepared for all land-disturbing activities subject to this article.

• Water quality impact assessment required

  A water quality impact assessment shall be submitted for all development and redevelopment within the CBPA Overlay District that involves: (1) Land disturbance of one acre or greater; (2) Development within an RPA; or (3) Development that may result in a significant impact on state waters.

• Water quality volume for development0.5 inch

  For development, the water quality volume shall be the Alexandria water quality volume default, unless a greater volume is required by the regulations.

• Water quality volume for redevelopment0.25 inch

  For redevelopment, the water quality volume shall be 50 percent of the Alexandria water quality volume default, unless a greater volume is required by the regulations.